the answer is A. covalent bonds
Answer:
Cytoskeleton
Explanation:
The cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement. Cytoskeleton is made of filamentous proteins, and it provides mechanical support to the cell and its cytoplasmic constituents. All cytoskeletons consist of three major classes of elements that differ in size and in protein composition including microtubules, actin filaments and intermediate filaments.
I found the whole exercise with the options for it. Here are the options:
"A. mobility and protection of the DNA molecule during mitosis.
B. prevention of ligase enzyme action during replication.
C. Both answers regarding DNA mobility, protection and regulation in mitosis and transcription are correct.
D. regulation and protection of the DNA during transcription.
E. ensuring that sister chromatids will be attached prior to replication."
Correct answer: C.
Both A. and D. are correct reasons for what is the value in packaging DNA in tighter forms of chromatin. By having a more compact DNA it is easier to move it and protect each bit of it as it is being processed during mitosis, going from one side to the other, separating sister chromatids, etc. Also, by compacting and releasing DNA it is easier to regulate and protect DNA as it is being expressed - the parts that are being transcripted are not packed while those that are not being transcripted are packed.
Answer:
D Ingredients
Explanation:
Ingredients are mixed and cause reactions